Compensator for pipe and rod connections



(No Model.) H. P. 00X.

GOMPENSATOR FOR PIPE AND'ROD OONNEGTIONS.

No. 246,662. Patented Sept. 6,1881.

UIIIIIIIIIII mI I I l i I I I l l I I l I I I l l l IIIIIIIIIIMIWNHII IINVENTOR HENRY F. 00X, BY

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ATTYS UNITED STATES ATENT Enron.

HENRY F. COX, OF ALTOONA, PENNSYLVANIA.

COMPENSATOR FOR PIPE AND ROD CONNECTIONS.

SPECIFICATION forming part of Letters Patent No. 246,662, datedSeptember 6, 1881.

Application filed July 7, 1881. (No model.)

To all whom it may concern:

Be it known that I, HENRY F. COX, of Altoona, county of Blair, and Stateof Pennsylvania, have invented an Improved Compensator for Pipe and RodConnections; and I do hereby declare that the following is a full andexact description of the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, in whichFigure 1 represents a side view, and Fig. 2 a top view.

Thisinvention has for its object the connection of pipe and rod sectionsin such 'manner that the expansion and contraction of the same underchanges of temperature may be properly'compensated for, and itconsists,mainly, in a special arrangement of parts, hereinafter fully described,by means of which the desired result is obtained without the projectionof any part below a horizontal base-line.

To enable others skilled in the art to make my invention, I will proceedto describe fully the construction of the same.

A A represent base-pieces, of proper form, which are strongly fastenedto foundationbeams or other suitable means of support.

ac represent rods or shafts, of proper length, according to the numberof compensating devices to be held thereby, which are securely held attheir ends in proper openings in the base-pieces, as shown.

B represents one ot a series of bell-crank levers, each of which isprovided with a proper opening, by means of which it is secured to therod a at one end of the base-pieces, as shown.

0 represents one of a series of bell-crank levers, each of which isprovided with a proper opening, by means of which it is secured to therod a at the opposite end of the basepieces.

D represents a connecting-rod, by means of which the adjacent ends ofthe levers B and O are united.

E represents the rod or pipe section extendin g away from the verticalarm of the lever B,

and F a'pipe-section extending away from the vertical arm of the leverO. The leverB, it will be observed, by means of the connecting arm D,communicates movement to the end of the lower arm of lever 0 withoutmaking any change in the general direction. The movement of the end ofthe lower arm of the lever O, on the contrary, gives movement to the endof the upper arm, located on the opposite side of the pivot, in adirectlyopposite direction.

By means of this arrangement it follows that when the vertical arm ofeither one of the levers B and O is actuated the other receives asimultaneous and equal movement in the opposite direction. Inconsequence of this capacity for equal and simultaneous movement inopposite directions perfectcompensation will be made for the expansionand contraction of the pipe-section under changes of temperature. Thearrangement of these parts is such, it will be observed, that no partprojects below the horizontal base-line of the supporting-beam.

' By varying the length of the lever-arms relatively to each otherprovision may be made for the expansion and contraction of pipe-sectionsof difl'erent lengths in the manner well understood.

Some of the advantages of the described construction are as follows: Bymeans of the described construction the necessary change of direction isobtained without the extension of any partto a material distance ineither a horizontal or vertical plane. By means of the base-pieces androds a series of compensators maybe held in such manner that each onemay be reached and adjusted independently of the others, if desired.

This invention has been practically applied in pipe or red lengthsconnecting switch or signal-levers with their switches or signals,

the purpose being to insure precisely the same resultant movement of theswitch or signal under every condition of temperature.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. The compensating device described, having the elements B O D, incombination with pipe or red lengths E F, as described.

2. In combination with the base-piecesA A, the rods a a and a series ofcrank-levers, B O, and connecting-rods I), as described.

3. Acompensator,substantiallyas described, having a connecting-rod andtwo bell-cranks, combined with pipe or rod lengths, substantially asdescribed.

This specification signed and witnessed this 28th day of June, 1881.

HENRY F. COX.

Witnesses:

W. D. OoUcH, THos. P. FOSTER.

